First Conditional, (Stopwatch 4), exercise 2

____________________ you listen to very loud music , you ____________________ damage your ears .

____________________ we don't control light pollution , we ____________________ be able to see the stars .

____________________ you take long showers , you ____________________ use a lot of water .

____________________ we share our cars , we ____________________ reduce our carbon footprint .

____________________ we all work together , we ____________________ make a difference .